This article has long scrolled off the front page, so just a quick reply: modern crypto is fast. Look up the speed on AES-GCM with AES-NI, PCLMULQDQ; on a moder

This article has long scrolled off the front page, so just a quick reply: modern crypto is fast. Look up the speed on AES-GCM with AES-NI, PCLMULQDQ; on a modern multicore server, your 100GB can be encrypted in a couple of seconds. (Or rather, the crypto isn't remotely the bottleneck.)